Power-windmill



(No Model.)

H. B. GOLMAN.

POWER WINDMILL.

No. 318,453. Patented May 26, 1885.

l f l In z/e n o 2',

'STATES PATENT OFFICE.

HUTSON B. COLMAN, OF KALAMAZOO, MICHIGAN.

POWER-WINDNIILL.

SPECIFECATION forming part of Letters Patent No. 318,453, dated May 26,1885.

Application led February 17, 1885. (No model.)

To LZZ whom it may concern:

Beit known that I, HUTsoN B. COLMAN, a citizen of the United States,residing at Kalamazoo, county of Kalamazoo, State of Michi gan, haveinvented a new and useful Wind Grinding-Mill, of which the following isa specification.

This invention relates to grindingmills connecting with and derivingtheir power from a wind-engine; and it has for its object certainimprovements hereinafter described and claimed. Y

In the accompanyingr drawings. forming a part of this specification,Figure l is a vertical section, parts being left full and parts brokenaway; Fig. 2, a plan of a detail in Fig. 1, hereinafter described; andFig. 3 is a top view of the beam D in Fig. 1 and parts thereon.

The upper part of Fig. l shows a common style of wind-engine, in whichcl is the windwheel shaft; B, the bearing-support therefor, swiveled inthe usual manner to turn in the cap or top ot the derrick; and c, thependent tubular extension of the bearingsupport B, having guide-bearingsB in the beam D, Figs. l and 3.

n is a hole through which the chain which is used to swing the vane E ispassed.

The tubular extension c rotates with the bearing-support B when thewheel shifts from one point ot' the compass to another. The power-shafta is concentric with the extension c, and forms operative engagementwith the wheel'shaft d.

In Fig. l are shown the two grinding-burrs of a grinding-mill, whichconstitute active and passive machine parts of a complete op erativemill. rIhese burrs surround the tube c and powershaft a, and rotate withthem, the passive burr e' being connected with the tube c, and theactive burr e being connected with the powershaft in operative relationwith the upper and passive burr, e. Thus in the operation the loweractive burr rotates with the powershaft to do the grinding when thewindwheel is propelled by the wind, and the upper passive burr remainsstationary, except when the wheel shifts from one point of the compassto another. Then it rotates with the tubular shaft c.

Thebowl- F of the hopper surrounds the shafts c a, and may be secured tothe shaft c, as in Fig. l, (or it may have a fixed support,) in

which case a common fixed feed spout, R, may be employed to feed thegrain in the bowl, as the circular top of the bowl is never thrown outof the plane shown in the drawings by the rotation of the shaft c.

At f is shown a casting, Fig. 2, having a central collar, with which afurther extension of the tube or shaft c is connected when desired. Thiscasting is secured to the base of the bowl F.

C is a fixed tray surrounding the vertical shafts and having a deliveryat It will be understood, of course, that the grain in the bowl F runsthrough perforations in the upA per burr, and after being reducedbetween the two burrs falls into the tray C or any other suitablereceptacle.

The object of extending the shafts c a below the grinding-mill, it' soextended, would be for the connection of other machinery; hence thisfeature in Fig. l simply shows such an extension of the shafts, butwithout any connected machinery to said extension.

s shows how a pump-rod may be passed down through a tubular shaft, a,passing through all connecting machinery to the ground below.

If preferred, the upper burr, c, may be connected with a power-shaft,and thus become the active machine part, instead of the lower burr, e,as also may the order of the concentric shafts be reversed, thus showinga reverse of the order of parts here shown,which is governed bymechanical judgment.

Having thus described my invention, what I Claim as new is- In a windgrindingmill, the combination of a wind-wheel shaft, a swiveledbearingsupport for said shaft, a vertical sliaft-eXtension of thebearing-support, a power-shaft concentric with the shaft-extension andforming operative engagement with the wheelshaft, and a grinder havingan active and a passive grinding-burr centrally connecting with andsurrounding said concentric shafts in operative relation, substantiallyas set forth.

In testimony of the foregoing I have hereunto subscribed my name inpresence of two witnesses.

HUTSON B. COLMAN. fitness-es:

GEO. O. B. HALL, SAM FALZ.

ICO

